An initiative to support the development of sustainable biofuels is being backed by 23 governments – major powers which account for 80% of the world’s investment in clean energy.The Sustainable Biofuels Innovation Challenge was announced by Mission Innovation – an influential group of countries who committed to working together to accelerate the pace of clean energy innovation – at COP 22.Governments are being called upon to pool resources and expertise to advance research and development, ‘with the goal of achieving performance breakthroughs and cost reductions for large scale production of advanced biofuels’.